The Congress on Tuesday said it did not consider senior leader Najma Heptullah a part of it.
"As and when necessary, it [the party] will take action [against Heptullah], but it is irrelevant. Why are you worried," party leader Kapil Sibal said in New Delhi.
Also see: Sonia humiliated me: Heptullah
He also denied that party president Sonia Gandhi had humiliated her.
The Congress wrote her off when she received an award from Rashtriya Swayamsevak Sangh chief K S Sudershan two years ago, he said.
Also see: Is the 'first lady' joining the BJP?
He asked if nominating Heptullah for 24 years to the Rajya Sabha and helping her become the deputy chairperson of the House was a humiliation
She wanted a commitment from the party for a fifth term in the Rajya Sabha and nobody could be given such a guarantee, he said.
Earlier, party spokesperson Anand Sharma described Heptullah's criticism of Gandhi as "unwarranted and unfortunate".